Home / 851,426.60-1,277,139.90-699,211.40

Finding the Fourth Proportional to 851,426.60, 1,277,139.90 and 699,211.40

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Solution

The fourth proportional to 851,426.60, 1,277,139.90 and 699,211.40 is: 1,048,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,426.60 : 1,277,139.90 = 699,211.40 : x
  2. Step 2: Convert to fraction form
    851,426.60/1,277,139.90 = 699,211.40/x
  3. Step 3: Cross multiply
    851,426.60x = 1,277,139.90 × 699,211.40
  4. Step 4: Simplify right side
    851,426.60x = 892,990,777,474.86
  5. Step 5: Solve for x
    x = 892,990,777,474.86/851,426.60
  6. Step 6: Final answer
    x = 1,048,817.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.